Watch List notes:

Bavandid, Shahriyar b. Rustam (fl.377-393h), Dirham, mint (Firim) and date unclear, citing the Buwayhid ruler Fakhr al-dawla as overlord, 5.72g (A 1525.1). Margins mostly flat, otherwise about very fine, extremely rare.
ex Baldwin's Islamic Coin Auction 14, 8 July 2008, lot 342

Estimate: £200-250